<%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
  <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 <html>
 <head>
 
 </head>
 <body>
 
 <form action="fileDown.action" method="post">
    <input type="submit" value="下载文件">
 </form>
 </body>
 </html>